PK/E2.1 ABB KNX Potential-Free Contact Interface 2-Fold for Conventional Switches Decentralized Module

The PK/E2.1 is a high-performance modular component of the ABB i-bus® KNX building automation system, engineered to deliver exceptional reliability, energy efficiency, and operational scalability for modern intelligent infrastructure.

As part of the globally recognized KNX Module range, this device represents the integration of advanced engineering standards with high-durability hardware, ensuring seamless coordination of critical building services such as lighting control, climate management, and system monitoring.

Engineered for DIN-rail or decentralized installation, the PK/E2.1 enables building operators to implement modular control architectures that reduce energy overhead and enhance occupant comfort. Built with sustainable, halogen-free materials and future-ready firmware, this device is a fundamental building block for high-performance infrastructure projects targeting LEED, WELL, and Green Premium certifications.

• Product Model: PK/E2.1
• Product Range: ABB i-bus® KNX System
• Communication Protocol: Standard KNX TP1 (S-Mode / PL-Link compatible)
• Interface Configuration & Channels: 2-fold potential-free sensing
• Rated Operating Voltage: 20 V DC scanning voltage
• Control Power Supply: Bus-powered via KNX line (DC 24-30 V SELV) or external auxiliary supply
• Functional Logic & Sensing: Compact design for wall boxes, converts mechanical signals to bus telegrams
• Network Topology Support: Supports standard star, daisy-chain, and branch-based bus architectures
• Wiring Interface: Industrial-grade maintenance-free PUSH-IN or industrial screw terminals
• Installation Method: Standard DIN Rail TH35 (EN 60715) or dedicated mounting interface
• Operating Temperature: -5°C to +45°C (standard indoor operational range)
• Ingress Protection: IP20 (Indoor mounting environments)
• Material Quality: Halogen-free, Flame-retardant industrial grade polycarbonate
• Certifications: CE Marked, RoHS, REACH, KNX Certified, Green Premium, BTL Listed